Replaceable cavity cold upsetting die and processing equipment

Abstract

The utility model discloses a cold heading die convenient to replace cavity, including first mould piece and second mould piece, be provided with the punch bar on the first mould piece, the second mould piece includes cavity piece and casing, be provided with the containing groove for installing cavity piece in the casing, cavity piece can be detachably installed in containing groove, the open of punch bar one end is corresponding containing groove, is used for exposing the cavity of cavity piece, punch bar cooperation cavity piece carries out cold heading forming. Can pass to the structural optimization of cold heading die, realizes the quick dismounting and installation of cavity, reduces the adjustment cost of production line when producing different products, promotes the efficiency of custom-made production.

Description

Technical Field

[0001] This utility model relates to metal processing, specifically to facilitate the replacement of cavity cold heading molds and processing equipment. Background Technology

[0002] Existing cold heading dies are generally used to process standard parts, so there is no need to change the cavity. However, more customized production is emerging, especially for products such as press-fit bolts and nuts. In cold heading, the cavity cannot be changed according to production needs, resulting in significant adjustments and replacements to the production line each time different products are produced, increasing production costs. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cavity cold heading mold and processing equipment that is easy to replace. By optimizing the structure of the cold heading mold, the cavity can be quickly disassembled and installed, reducing the adjustment cost of the production line when producing different products and improving the efficiency of customized production.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cold heading mold that facilitates cavity replacement, comprising a first mold and a second mold, wherein the first mold is provided with a punch, and the second mold includes a cavity component and a housing, wherein the housing is provided with a receiving groove for installing the cavity component, the cavity component is detachably installed in the receiving groove, and the receiving groove is open at one end corresponding to the punch to expose the cavity of the cavity component; the punch cooperates with the cavity component to perform cold heading.

[0005] As a further improvement of this utility model, the second module also includes an assembly groove and a drive component, a mating component, and a demolding ejector rod, all installed in the assembly groove. The assembly groove is connected to the receiving groove and is used for the cavity component to be installed into the receiving groove. The mating component is located between the cavity component and the drive component. When the drive component is installed in place, the cavity component is pressed tightly into the receiving groove by the mating component. The demolding ejector rod passes through the mating component and extends into the cavity of the cavity component.

[0006] As a further improvement of this utility model, the driving component includes a connecting seat and a hydraulic assembly fixedly connected to the connecting seat. The demolding ejector rod is fixedly connected to the telescopic end of the hydraulic assembly, and the connecting seat is fixedly connected to the end of the receiving groove.

[0007] As a further improvement of this utility model, the connecting seat is fixedly connected to the end of the receiving groove of the housing by a flange.

[0008] As a further improvement of this utility model, a guide hole is provided on the mating part at the position through which the demolding ejector rod passes. The size of the guide hole is adapted to the demolding ejector rod to provide radial support and axial guidance for the demolding ejector rod.

[0009] As a further improvement of this utility model, the cavity component is frustum-shaped, the cavity is located on the upper bottom surface of the cavity component, and the bottom of the cavity has a channel for the movement of the ejector pin.

[0010] This utility model also provides a processing device, including the cold heading mold described in any one of the above-mentioned methods that facilitates cavity replacement.

[0011] The beneficial effect of this utility model is that by splitting the second module into a cavity component and a housing, and setting a receiving groove for installing the cavity component in the housing, the cavity component can be detachably installed in the receiving groove. When different types of products need to be produced, it is only necessary to remove the original cavity component from the receiving groove and install a cavity component that is suitable for the new product. There is no need to make significant adjustments to the entire cold heading mold or production line, which effectively reduces the equipment adjustment cost in customized production. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0013] Reference numerals: 1. First mold part; 11. Punch bar; 2. Second mold part; 21. Cavity part; 22. Shell; 23. Receiving groove; 24. Assembly groove; 25. Drive component; 251. Connecting seat; 252. Hydraulic component; 26. Mating part; 261. Guide hole; 27. Ejector pin. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0015] Referring to Figure 1, this embodiment provides a cold heading mold that facilitates cavity replacement, including a first mold 1 and a second mold 2. The first mold 1 is provided with a punch 11. The second mold 2 includes a cavity component 21 and a housing 22. The housing 22 is provided with a receiving groove 23 for mounting the cavity component 21. The cavity component 21 is detachably mounted in the receiving groove 23. The receiving groove 23 is open at one end corresponding to the punch 11 to expose the cavity of the cavity component 21. The punch 11 cooperates with the cavity component 21 to perform cold heading.

[0016] In practical applications, the cavity component 21 is first installed into the receiving groove 23 of the housing 22, so that the cavity of the cavity component 21 is exposed through the opening at one end of the receiving groove 23 corresponding to the punch 11. Then, the first mold component 1 and the second mold component 2 are adjusted to the preset processing position to ensure that the punch 11 on the first mold component 1 is aligned with the cavity of the cavity component 21. When cold heading is performed, the first mold component 1 drives the punch 11 to move towards the cavity component 21, and the punch 11 presses the metal raw material to be processed into the cavity of the cavity component 21. This mechanism facilitates the cold heading of metal raw materials. When different types of products need to be produced, the cavity component 21 in the receiving groove 23 can be disassembled and removed, replaced with a new cavity component 21 with a corresponding cavity, and then the new cavity component 21 can be reinstalled and fixed in the receiving groove 23 to continue the cold heading operation. There is no need to make significant adjustments to the overall structure of the first mold component 1 and the second mold component 2 or the production line. This not only reduces the time and cost of equipment adjustment, but also improves the mold's adaptability to the production needs of different customized products and improves the efficiency of customized production.

[0017] To facilitate the installation stability of the cavity component 21 within the receiving groove 23 and to enable convenient demolding of the product after cold heading, in one optional embodiment, the second mold component 2 further includes an assembly groove 24 and a drive component 25, a mating component 26, and a demolding ejector pin 27, all installed in the assembly groove 24. The assembly groove 24 is connected to the receiving groove 23 and is used for the cavity component 21 to be installed into the receiving groove 23. The mating component 26 is located between the cavity component 21 and the drive component 25. When the drive component 25 is installed in place, the cavity component 21 is pressed tightly into the receiving groove 23 by the mating component 26. The demolding ejector pin 27 passes through the mating component 26 and extends into the cavity of the cavity component 21.

[0018] When installing the cavity component 21, the cavity component 21 can be inserted into the receiving groove 23 through the assembly groove 24. After the cavity component 21 is installed in the preset position, the mating component 26 is inserted into the assembly groove 24, and then the drive component 25 and the ejector rod are installed in the designated position in the assembly groove 24. When the drive component 25 is installed in place, it will apply a force towards the cavity component 21 to the mating component 26. Under the action of this force, the mating component 26 will press the cavity component 21 tightly in the receiving groove 23, reducing the possibility of displacement of the cavity component 21 during the cold heading operation and improving the accuracy of cold heading. After the cold heading operation is completed, the drive component 25 can drive the demolding ejector rod 27 to move axially. During the movement, the demolding ejector rod 27 will push the product formed in the cavity, so that the product will be released from the cavity. There is no need for manual demolding, which reduces the intensity of manual operation and reduces the damage to the product during demolding, further improving production efficiency and product qualification rate. When replacing the cavity component 21, only the drive component 25 needs to be disassembled. At this time, the housing 22 and the drive component 25 are separated. After taking out the mating part 26, the cavity component 21 can be taken out for replacement and then reinstalled. This replacement method makes the assembly of the cavity component 21 more stable and does not affect the replacement efficiency of the cavity component 21.

[0019] Specifically, further optimization can be carried out in the following ways to improve the operational stability of the drive component 25 and the transmission reliability of the demolding ejector 27. The drive component 25 includes a connecting seat 251 and a hydraulic component 252 fixedly connected to the connecting seat 251. The demolding ejector 27 is fixedly connected to the telescopic end of the hydraulic component 252, and the connecting seat 251 is fixedly connected to the end of the receiving groove 23.

[0020] Fixing the connecting seat 251 to the end of the receiving groove 23 ensures the stability of the overall installation position of the drive component 25 and prevents the drive component 25 from shaking during operation. The hydraulic component 252 is fixed on the connecting seat 251 and can obtain stable support through the connecting seat 251. When the hydraulic component 252 is running, its telescopic end can drive the demolding ejector rod 27 to move stably along the axial direction. Compared with other driving methods, hydraulic drive has the characteristics of stable output force and high transmission accuracy.

[0021] In some options, to further improve the connection stability between the connector 251 and the housing 22 and reduce the possibility of the connector 251 becoming loose during long-term use, the connector 251 is fixedly connected to the end of the receiving groove 23 of the housing 22 by a flange.

[0022] The connecting seat 251 is fixed to the end of the receiving groove 23 of the housing 22 by means of flange connection. The flange connection has the characteristics of high connection strength and convenient disassembly. It can not only form a stable connection structure between the connecting seat 251 and the housing 22, but also withstand the force generated by the hydraulic component 252 during operation.

[0023] To prevent the ejector pin 27 from shifting during movement and to ensure that it can always move stably in the preset direction, in one option, a guide hole 261 is provided on the mating part 26 at the position through which the ejector pin 27 passes. The size of the guide hole 261 is adapted to the ejector pin 27 to provide radial support and axial guidance for the ejector pin 27.

[0024] After passing through the guide hole 261 on the mating part 26, the ejector pin 27 extends into the cavity of the cavity part 21. The size of the guide hole 261 is adapted to the ejector pin 27, which can provide radial support for the ejector pin 27 and limit the displacement of the ejector pin 27 in the radial direction. At the same time, when the ejector pin 27 moves axially, the guide hole 261 can provide axial guidance for it, ensuring that the ejector pin 27 always moves in the preset axial direction. This avoids the situation where the ejector pin 27 cannot accurately extend into the cavity due to deviation or causes collision damage to the cavity part 21 during the demolding process, thereby improving the stability and reliability of the ejector pin 27 and further ensuring the smooth progress of the cold heading operation.

[0025] To facilitate the positioning and installation of the cavity component 21 within the receiving groove 23, and to provide a stable space for the ejector pin 27 to move, in one optional embodiment, the cavity component 21 is frustum-shaped, with the cavity located on the upper bottom surface of the cavity component 21, and the bottom of the cavity having a channel for the ejector pin 27 to move.

[0026] The frustum-shaped cavity component 21 has a certain taper. When it is installed into the receiving groove 23, the tapered structure can play a guiding role, making it easy for the cavity component 21 to be quickly aligned with the installation position and improving installation efficiency. At the same time, the frustum-shaped structure can also form a better fit with the inner wall of the receiving groove 23. With the tightening action of the mating part 26, the installation stability of the cavity component 21 can be further improved.

[0027] This embodiment also provides a processing device, including any of the above-mentioned cold heading molds that facilitate cavity replacement.

[0028] By applying cold heading dies with easily replaceable cavities to processing equipment, the equipment can adapt to the production needs of different products (such as customized products like press-fit bolts and press-fit nuts) by quickly changing the cavity component 21 of the cold heading die, without requiring significant adjustments to the overall structure of the processing equipment, thus reducing the time and cost of equipment adjustments. At the same time, the design of the drive component 25, mating component 26, and ejector pin 27 in the cold heading die can also improve the operational stability and production efficiency of the processing equipment, reduce the intensity of manual operation, and help the processing equipment better meet the needs of customized production.

[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A cold heading die for easy cavity replacement, comprising a first die and a second die, wherein the first die is provided with a punch, characterized in that, The second module includes a cavity component and a housing. The housing has a receiving groove for mounting the cavity component. The cavity component is detachably mounted in the receiving groove. The receiving groove has an opening at one end corresponding to the punch to expose the cavity of the cavity component. The punch is used in conjunction with the cavity part for cold heading.

2. The cold heading mold for easy cavity replacement according to claim 1, characterized in that, The second module also includes an assembly slot and a drive component, a mating component, and a demolding ejector pin, all installed in the assembly slot. The assembly slot is connected to a receiving slot and is used for the cavity component to be installed into the receiving slot. The mating component is located between the cavity component and the drive component. When the drive component is installed in place, the mating component presses the cavity component tightly into the receiving slot. The ejector pin passes through the mating part and extends into the cavity of the cavity part.

3. The cold heading mold for easy cavity replacement according to claim 2, characterized in that, The driving component includes a connecting seat and a hydraulic assembly fixedly connected to the connecting seat. The demolding ejector rod is fixedly connected to the telescopic end of the hydraulic assembly, and the connecting seat is fixedly connected to the end of the receiving groove.

4. The cold heading die for easy cavity replacement according to claim 3, characterized in that, The connecting seat is fixedly connected to the end of the receiving groove of the housing via a flange.

5. The cold heading mold for easy cavity replacement according to claim 2, characterized in that, The mating part has a guide hole at the position through which the demolding ejector rod passes. The size of the guide hole is adapted to the demolding ejector rod to provide radial support and axial guidance for the demolding ejector rod.

6. The cold heading mold for easy cavity replacement according to claim 1, characterized in that, The cavity is frustum-shaped, with the cavity located on the upper bottom surface of the cavity. The bottom of the cavity has a channel for the movement of the ejector pin.

7. A processing equipment, characterized in that, Includes the cold heading mold that facilitates cavity replacement as described in any one of claims 1 to 6.

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